
^^1918's H1N1 influenza above is the parent to all H/N influenza virus', and its descendant H5N1 is already here, has a death rate of 50% presently, but has only 4 of the 5 enzymes needed to go airborne (it's person-to-person through direct contact only now), but is making billions of mutations a day in industrialized chicken sheds. Freed by proximity to natures natural limit on voracity, ultra deadly H5N1 has emerged; you can kill your host when the next beak is only inches away. When it gets the 5th enzyme for it's H spike, it will be able to cut through protective airway mucus ("lungs are the easy way in" - M Greger), and unleash the 50%+ death rate of it's N spike.
^^^ The Spanish Flu* above (first seen in the US), had a 2.5% death rate (Covid-19 around 1%), however H5N1 presently is killing 50% in the wild, and it's Z+ strain in labs has a 100% death rate. These will be the death rates when it goes airborne.
Anthony Fauci says of H5N1, "Get rid of the if, this IS going to occur."
Gregory Poland of the Mayo Clinic, "When this happens, time will be described by those left living as before and after the pandemic. Billions will be killed. We are a half a step away from catastrophe."
When get the news that an outbreak of H5N1 happened, it will be too late, it will be near everyone in weeks and it will run its course. Like its grandpa H1N1 in 1918, it will kill by turning ones immune system against one, dissolving the lungs to produce cough/spread, thus the death rate will be highest (70%+), in the 20 - 40 age bracket where the strongest immune systems are.
In the mild 1% Covid-19 death rates, people can still go to work, we didn't lose water/power/heat/food stores/medical/internet...but in a 50% death rate, bodies piling up may keep people from going to work. In 50% death rates, nobody's gonna want to go out for nothin... That may give cause for thought to one's preparedness, to isolate for 12 to 18 months while a catastrophe blows over.
Funny such newsworthy information is not on the so -called "news," I wonder if it has anything to do with Tyson, and Purdue, and McDonald's millions of advertising dollars, you deserve a break today an all that...
At any rate, to learn more from history, to know more about the future

BTW...Influenza timeline, the result of the cramming of thousands of chickens together in sheds that super-blossomed in the 70's and 80's. One of the H7 variants is nearly as frightening as H5N1...
(Snowflakes to avalanche as poultry production industrialized).I'm dying for some chicken, lol.